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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
| commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
| tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /dom/canvas/test/webgl-conf/checkout/conformance/glsl/bugs/conditional-discard-optimization.html | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip | |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/canvas/test/webgl-conf/checkout/conformance/glsl/bugs/conditional-discard-optimization.html')
| -rw-r--r-- | dom/canvas/test/webgl-conf/checkout/conformance/glsl/bugs/conditional-discard-optimization.html | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/glsl/bugs/conditional-discard-optimization.html b/dom/canvas/test/webgl-conf/checkout/conformance/glsl/bugs/conditional-discard-optimization.html new file mode 100644 index 0000000000..1c3b1bb6fb --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance/glsl/bugs/conditional-discard-optimization.html @@ -0,0 +1,117 @@ +<!-- +Copyright (c) 2019 The Khronos Group Inc. +Use of this source code is governed by an MIT-style license that can be +found in the LICENSE.txt file. +--> + +<!-- author: Bill Baxter (wbaxter at google.com) --> + +<!DOCTYPE html> +<html> +<head> +<meta charset="utf-8"> +<title>ANGLE WebGL Shader Conditionals Repro</title> +<link rel="stylesheet" href="../../../resources/js-test-style.css"/> +<script src="../../../js/js-test-pre.js"></script> +<script src="../../../js/webgl-test-utils.js"></script> +</head> + +<body> +<canvas id="repro" style="border: none;" width="256" height="256"></canvas> +<div id="description"></div> +<div id="console"></div> + +<script id="shader-vs" type="x-shader/x-vertex"> +attribute vec2 pos; +varying mediump float varA; +void main(void) { + varA = 0.; + gl_Position = vec4(pos, 0.0, 1.0); +} +</script> + +<script id="shader-fs" type="x-shader/x-fragment"> +precision mediump float; +varying float varA; +void main(void) { + if (varA < -1. || (varA < -1. && varA > 1.)) { + discard; + } + gl_FragColor = vec4(0, 1, 0, 1) + 2. * varA * 2.; +} +</script> + +<script id="shader-fs-mutable" type="x-shader/x-fragment"> +precision mediump float; +varying float varA; +void main(void) { + float b = varA; + if (varA < (b -= 1.) || (varA < b && varA > (b += 2.))) { + discard; + } + gl_FragColor = vec4(0, 1, 0, 1) + 2. * varA * 2.; +} +</script> +<script id="shader-fs-unfolded" type="x-shader/x-fragment"> +precision mediump float; +varying float varA; +void main(void) { + bool s1 = varA < -1.; + if (!s1) { + bool s2 = varA < -1.; + if (s2) { + s2 = varA > 1.; + } + s1 = s2; + } + if (s1) { + discard; + } + gl_FragColor = vec4(0, 1, 0, 1) + 2. * varA * 2.; +} +</script> +<script> +"use strict"; + +description(); +debug(""); +debug("If things are working correctly, then there will be a green square."); +debug("Otherwise it will be a black void."); +debug("This is a repro for an issue seen on the D3D9 ANGLE implementation of WebGL on Chrome in a shader with a conditional discard, where the conditional is of the form (a || (b && c))."); + +var wtu = WebGLTestUtils; +var canvas = document.getElementById("repro"); +var gl = wtu.create3DContext(canvas); +if (!gl) { + testFailed("context does not exist"); +} else { + gl.clearColor(0.0, 0.0, 0.0, 1.0); + wtu.setupUnitQuad(gl); + + debug(""); + debug("Testing shader with conditional discard"); + gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); + var program = wtu.setupProgram(gl, ["shader-vs", "shader-fs"], ["pos"], undefined, true); + wtu.drawUnitQuad(gl); + wtu.checkCanvasRect(gl, 128, 128, 128, 128, [ 0, 255, 0, 255 ], "should be green", 1); + + debug(""); + debug("Testing conditional discard with side-effects in conditions"); + gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); + var programMutable = wtu.setupProgram(gl, ["shader-vs", "shader-fs-mutable"], ["pos"], undefined, true); + wtu.drawUnitQuad(gl); + wtu.checkCanvasRect(gl, 128, 128, 128, 128, [ 0, 255, 0, 255 ], "should be green", 1); + + debug(""); + debug("Testing conditional discard with unfolded condition logic"); + gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); + var programMutable = wtu.setupProgram(gl, ["shader-vs", "shader-fs-unfolded"], ["pos"], undefined, true); + wtu.drawUnitQuad(gl); + wtu.checkCanvasRect(gl, 128, 128, 128, 128, [ 0, 255, 0, 255 ], "should be green", 1); +} + +var successfullyParsed = true; +</script> +<script src="../../../js/js-test-post.js"></script> +</body> +</html> |